[Isocops] CAR : Mon 6/14 1pm EDT : Lo Special Ops SCCB

[Eberhard Moebius]

Dear Nathan:

Your suggestion is an excellent one. Switching between a hi-res and a  
lo-res mode also provides us with a first opportunity to cross- 
calibrate the two viewing modes, using the Moon as a point source.
I would suggest a 1:7 ratio or a 2:6 ratio for lo-res:hi-res  
accumulation times in order to give the hi-res mode a boost in terms  
of counting statistics.

Stephen, please weigh in from your idea about using this mode for the  
Moon.

	With best regards
		Eberhard

Eberhard Möbius
Space Science Center and Department of Physics
Department Chair
University of New Hampshire
Morse Hall, 8 College Road
Durham, NH 03824

Phone: 1 603 862 3097
Fax: 1 603 862 0311

On Jun 10, 2010, at 9:38 PM, Nathan Schwadron wrote:

> Hi All
>
> I spoke to Stephen today and recommended that we run the O-mode with  
> a start bin of 0 and a stop bin of 59. The rationale is as follows.  
> If we have a start tracker outage during O-mode and view only part  
> of the great circle (start bin > 0 and stop bin <59) then we would  
> end up not being able to reconstruct the data. So we are still at  
> risk if a star tracker outage occurs. On the other hand if we view  
> the whole great circle (start bin = 0 and stop bin = 59) then we  
> would *not* compromise the data in case of a star tracker outage.
>
> The downside of using a start bin =0 and a stop bin = 59 is that we  
> will exclude some of the  normal viewing during an orbit. However, I  
> do not see this as a big downside. If we want to have some normal  
> viewing, then we could switch between the O-mode table 3 and a  
> normal mode on some cadence you can choose. In this case, because we  
> view full great circles (start bin = 0 and stop bin =59), both the  
> normal viewing and the O-mode viewing would be insensitive to a star  
> tracker outage. I view this as being a far more robust solution and  
> I think it will be far more successful in the long run.
>
> Let me be clear that I am happy to perform the test with either the  
> original CAR from Chelle or the slight revision attached.
>
> Nathan
>
> <CAR-LoMoonTestPrep-100701_nas.doc>
>
> On Jun 10, 2010, at 1:16 PM, Reno, Michelle wrote:
>
>> Attached is the CAR I have put together. The goal is to reset the  
>> Lo O-mode Start bin to 38 & Stop bin to 50, per Stephen's request.  
>> Please review and send comments.
>>
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Chelle Reno
>> Austin Mission Consulting
>> 106 E. 6th St. Ste. 939
>> Austin, TX  78701
>> (512) 704-3394 (o)
>> (210) 478-7337 (c)
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>> From: Reno, Michelle
>> Sent: Thu 6/10/2010 10:20 AM
>> To: Harald Kucharek; Nathan Schwadron; Fuselier, Stephen A
>> Cc: Eberhard Moebius; David Heirtzler; Petrinec, Steven M; Reno,  
>> Michelle; Peter Wurz; McComas, Dave; Mark Tapley; Ken Fairchild;  
>> isoc cops; Herb Funsten (hfunsten at lanl.gov); Dan Reisenfeld (dan.reisenfeld at umontana.edu 
>> ); Paul Janzen (paul.janzen at umontana.edu)
>> Subject: Mon 6/14 1pm EDT : Lo Special Ops SCCB
>>
>> Hi All,
>>
>> We will have an SCCB for the o83 & o84 Lo Special Ops on the Monday  
>> 6/14 12:30 Eastern Ops Weekly Telecon.
>>
>> Please call in at 1:00 Eastern to allow time for standard ops  
>> topics to be covered prior to this SCCB.
>>
>> 866-750-1362
>> 7727484#
>>
>> o83 - Lo High Resolution Moon Viewing Test
>> Description: Enter Oxygen Mode (LUT3) for a portion of the orbit  
>> when the moon viewing is optimal
>> Commanding: Time tagged commands in STF. Start/stop bin set via CAR.
>> Testing: Already tested on FlatSat.
>> Impact on Hi: Leave HVSCI twice in the orbit for a few minutes each  
>> time to change Lo Mode.
>>
>> o84 - Lo Background Test
>> Description: Enter Background Mode (LUT255) for a portion of the  
>> orbit.
>> Commanding: Time tagged commands in STF.
>> Testing:
>> Impact on Hi: Leave HVSCI twice in the orbit for a few minutes each  
>> time to change Lo Mode.
>>
>> Thanks,
>> Chelle
>>
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Chelle Reno
>> Austin Mission Consulting
>> 106 E. 6th St. Ste. 939
>> Austin, TX  78701
>> (512) 704-3394 (o)
>> (210) 478-7337 (c)
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>
>>
>> <CAR-LoMoonTestPrep-100701.doc>
>> Please restrict discussions on this email list to non-ITAR  
>> sensitive topics.
>> ______________________________________________
>> Isocops mailing list
>> Isocops at lists.sr.unh.edu
>> http://lists.sr.unh.edu/mailman/listinfo/isocops
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.sr.unh.edu/mailman/private/isocops/attachments/20100610/d864a3f8/attachment.html